# Overview

## Vultisig Project

Vultisig is an open-source cryptocurrency vault that takes a novel approach: seedless, multi-factor, multi-chain security based on MPC (Multi-Party Computation) technology.

Available on iOS, Android, macOS, Windows, Linux, and as a browser extension—Vultisig delivers multi-sig level security without the traditional multi-sig complexity.

***

## What is Vultisig?

Vultisig is a multi-chain, multi-factor, multi-platform Threshold Signature Scheme (TSS) vault. No specialized hardware required.

Supporting UTXO, EVM, BFT, and EdDSA chains (Bitcoin, Ethereum, Cosmos, Solana, and 30+ more), Vultisig generates both ECDSA and EdDSA signature keys for every vault. Hold and sign for BTC, ETH, SOL, and more from a single vault setup.

Powered by [DKLS23](https://github.com/silence-laboratories/dkls23), a state-of-the-art TSS protocol developed by Silence Laboratories.

Built by the founders of [THORChain](https://thorchain.org)—creators of the largest and longest-running multi-chain DEX powered by Threshold Signature Schemes.

### Key Features

* **No seed phrases**: Vault shares replace vulnerable 12/24 word seeds
* **Multi-chain**: 30+ blockchains from one vault (Bitcoin, Ethereum, Solana, Cosmos, and more)
* **Multi-factor**: Multiple devices required to sign transactions
* **Multi-platform**: iOS, Android, macOS, Windows, Linux, Browser Extension
* **Open source**: Fully auditable code on [GitHub](https://github.com/vultisig)

***

## How It Works

Vultisig works like a traditional multisig wallet but with flexible setup options and modern convenience.

**Fast Vault** — Single device + Vultisig server. Quick setup, instant signing.

**Secure Vault** — Multiple devices you control:

* 2-of-2: Fastest setup, no fallback
* 2-of-3: Recommended, with fallback device
* 3-of-4: Maximum security, with fallback device

{% hint style="info" %}
These are the most common configurations, but Vultisig supports a wide range of threshold setups for advanced users.
{% endhint %}

***

## Why Vultisig?

**Better security model:**

* Vault shares don't store funds—no funds at risk if you lose a share
* No on-chain registration of signing keys
* Compatible with all chains and fully DeFi compatible (multi-sigs often aren't)

**Uses devices you already own:**

* Phones, tablets, laptops with familiar interfaces
* Secure Enclaves protect vault shares
* Biometric authentication built-in
* Doesn't look like a hardware wallet (better operational security)

**Open source and audited:**

* Fully transparent codebase on [GitHub](https://github.com/vultisig)
* Security audits completed ([view reports](https://docs.vultisig.com/help-and-legal/security))

{% hint style="info" %}
**No registration required.** Vultisig never permanently stores your email or personal info. Fast Vaults briefly require email to send backup files—used once and not retained.
{% endhint %}

***

## Quick Navigation

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Getting Started</strong></td><td>New to Vultisig? Download, create your first vault, and make your first transaction.</td><td><a href="getting-started/overview">overview</a></td></tr><tr><td><strong>App Guide</strong></td><td>Complete guides for Wallet, DeFi, and Vault Management features.</td><td><a href="app-guide/overview">overview</a></td></tr><tr><td><strong>Security &#x26; Technology</strong></td><td>How threshold signatures work, protocol deep-dives, and security architecture.</td><td><a href="security-and-technology/overview">overview</a></td></tr><tr><td><strong>Developer Docs</strong></td><td>Build on Vultisig: SDK, Extension integration, Marketplace development.</td><td><a href="developer-docs/marketplace">marketplace</a></td></tr></tbody></table>

***

## Vultisig Ecosystem

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Vultisig Wallet</strong></td><td>Core vault application for iOS, Android, macOS, Windows, Linux</td><td><a href="getting-started/download-install">download-install</a></td></tr><tr><td><strong>Vultisig Extension</strong></td><td>Browser extension for Web3 dApp connections</td><td><a href="ecosystem/vultisig-extension">vultisig-extension</a></td></tr><tr><td><strong>Web App</strong></td><td>View-only vault access and airdrop tracking</td><td><a href="ecosystem/web-app">web-app</a></td></tr><tr><td><strong>Marketplace</strong></td><td>Self-custodial automation marketplace</td><td><a href="ecosystem/marketplace">marketplace</a></td></tr></tbody></table>

***

## Download

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>iOS</strong></td><td><a href="https://apps.apple.com/us/app/vultisig/id6503023896">https://apps.apple.com/us/app/vultisig/id6503023896</a></td></tr><tr><td><strong>Android</strong></td><td><a href="https://play.google.com/store/apps/details?id=com.vultisig.wallet">https://play.google.com/store/apps/details?id=com.vultisig.wallet</a></td></tr><tr><td><strong>macOS</strong></td><td><a href="https://github.com/vultisig/vultisig-ios">https://github.com/vultisig/vultisig-ios</a></td></tr><tr><td><strong>Windows/Linux</strong></td><td><a href="https://github.com/vultisig/vultisig-windows/releases">https://github.com/vultisig/vultisig-windows/releases</a></td></tr><tr><td><strong>Browser Extension</strong></td><td><a href="https://chromewebstore.google.com/detail/vulticonnect/ggafhcdaplkhmmnlbfjpnnkepdfjaelb">https://chromewebstore.google.com/detail/vulticonnect/ggafhcdaplkhmmnlbfjpnnkepdfjaelb</a></td></tr></tbody></table>

***

## Community

* **Discord**: [discord.vultisig.com](https://discord.vultisig.com)
* **Twitter/X**: [@vultisig](https://x.com/vultisig)
* **GitHub**: [github.com/vultisig](https://github.com/vultisig)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.vultisig.com/readme.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.